Shooting Sports: What frame rate?

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I'm going to be doing some filming of high speed sports 30-80+ mph.

Now everyone is going for the film look at using 24p.

The Plan and reason of the question.

Get an EX 1 and shoot in 30 p for full speed and 720p @60 for the slomo.

I want the film look. High quality image and ability to have dof control. (EX1)



Is shooting in 30p and 60p going to give me better looking images for these fast moving objects better than 24p?
 
Yes, I think for high speed sports, that 24p will be too slow of a frame rate. Personally I'd go with 60i, for the most information and clearest image possible. But it's really personal preference if you want to go with 30p or 60i. But if you shoot 60i, at least you have the clearest picture you can get. And if you need less DOF you can always just film from farther away and zoom in on your subject. Or if you need more DOF just move in.

Hope this helps
 
Patrick,

in your opinion' 60i would give me a cleaner image of moving subjects.

We'll be doing some test on this.

I'll probably be pumping most of the footage thru AE for post. That's the plan so far to smooth out any bumps in the format /color/ issues.

Should I be considering any special shutter speed or special settings in addition to frames?

A DOF adapter for pretty shots is the budget comes in. So not too worried about that.
 
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I always thought that having a higher shutter speed while filming outdoors would give you a cleaner image if you're shooting fast moving objects..:huh: wouldn't a slower shutter speed give you too much blur?
 
fast moving objects look best shot at a higher shutter speed. this will also give you the best look for slow mo as well. do some tests shots and see what you think works best for what the end product will be. sounds like you have a HD option so i'd go with barry's recomendation as well.
 
Higher shutter speeds will have less intra-frame blurring (blurring within a frame), so if there's enough light, you will benefit from them in a high-speed scene.

High shutter should not result in a "choppy" look because it only affects the exposure time, not the frame rate on playback. Each more briefly-exposed frame still stays on the screen for the same amount of time in playback as a longer-exposed one does. It will just be less blurry. It will also require a wider aperture (or less ND filtering), all else being equal.

It's a slow frame rate that will make the footage look choopy due to the strobing effect. So 60fps would be the best.

60p will certainly be better than 60i if it's available.
 
Shooting with a fast shutter speed ons omething fast will give you the appearnce of the moving object being frozen in the frame, but moving along in a staggering fashion. The slower the shutter the smoother it will be, but if its moving fast, its likely to be a coloured streak. You need to find a balence between choppyness and smoothness
 
For what its worth I was told at the NPPA (National Press Photographers Association) workshop by a photojournalist who shot for NFL Films, that if you shoot 60i you should have your shutter at 1/250. You will get smooth slow mos and not jerky full speed motion. 60p you may not need so much shutter 1/120 might be just fine.
 
There's so much misinformation on this thread.

Shooting with an open shutter gives you the smoothest motion.
It's also the most natural; the human eye doesn't have a shutter.

Shooting 60i or 60p gives you the most accurate motion.

Shooting with a high shutter gives you sharper stills, that's all, but it makes your videos more juddery. It's painfully obvious; just try it out. If stills are more important to you than video quality, get a still camera.
 
Exactly. Higher shutter speed will give you sharper frame grabs, but the motion will jutter more. If something is moving fast, than it wouldn't look sharp in real life anyways, so the motion blur is realistic.

A normal shutter speed that is almost always used on films is a 180 degree shutter, which in video terms means 1/48th if you're doing 24 FPS or 1/60th if you're doing 30P. I think it's different for interlaced footage, but I'm not sure where it is on that. This applies to slow motion work too. So if you're shooting at 500 frames a second for an explosion, then the 180 degree shutter speed would dictate a 1/1000th of a second shutter speed.

Basically if you want it to look natural, use 180 degree shutter speeds, unless you are going for a certain effect or look or feel to it.
 
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